服務圈界定為社區化福利設施規劃之首要課題。由中地理論、成長中心、領域圈 等服務圈建構理論，生活圈公共設施設置指標及社區之意涵、範圍、類型等相關變項為社區 福利設施服務圈界定之導論，本文嘗試以社區老人文康中心為對象，針對服務圈推估模式中 各類因子含場所最大使用人口數、地區老年使用人口比率、都市化影響程度、地區老人需求 差異影響、交通可及性等進行實證研究，而驗證模式之有效性，並檢核現有場所服務圈之合 理性。

　　　　　The model of service circle is the most important issue for welfare facilities planning in the community. From the theory of central place, growth pole and territory, the variables related to definition, region and category of community, and the distribution of public facilities, We comprehensively consider that the model of service circle for community senior center should include several factors, which are maximum utilization population of center, utilization population ratio of area elders, influence of urbanization, requirement differences between areas, and transportation accessibility. This paper tries to proceed a local survey in terms of the factors of model, then to testify the feasibility of model and discuss the current distribution of existing senior centers.